If you are looking for a transformer, know that it will be necessary to obtain the device's approval. In today's article, we will teach you which ones are necessary!

Do you know what transformer type approval is? Since transformers handle large energy loads, they not only require frequent operational tests (replace with routine, type, and special tests) but also need to comply with safety standards. Therefore, it's clear that all transformers must be approved by the power distribution company, which is the well-known type approval.

Homologation is nothing more than the term used to approve or prove that equipment meets the technical requirements requested by the utility company. Thus, the homologation of a transformer would be the proof that it complies with the technical standards stipulated by the energy utility company.

The importance of having an approved product lies precisely in conveying reliability to dealerships and customers, as well as ensuring that the transformer functions according to the requested requirements. 

To this end, various checks are performed regarding the safety, efficacy, durability, operation, and quality of the equipment. This is the main fact for a new connection in a certain region or state, besides the fact that many utility companies require that the equipment installed in their concession area be purchased from companies approved by them.

What should you pay attention to when buying a transformer?

When we talk about homologation, we are referring to dealerships that require the transformer manufacturer to have conducted testing. In other words, they attest that the transformer is at its maximum quality, ready to receive energy from the manufacturer. 

For example, if a company is going to open a primary substation in Espírito Santo, which requires a transformer inside, it needs to purchase this transformer from a dealership approved by the manufacturer, which in this case is EDB. 

It is important to emphasize that the dealership's criteria vary from region to region, and not all of them require homologation. Minas Gerais, Espírito Santo, and Goiás are among the states that require homologation.

Still in the example case, after the cabin is ready, the dealership will be able to energize the equipment. That is, if it is not from an approved manufacturer, there would be no energization. Therefore, it is always important to check if the state where your company will build something that requires transformers will require approval.

It is important to note that when purchasing any transformer, it is essential for the buyer to verify that the equipment has up-to-date testing. The tests must comply with ABNT (Brazilian Association of Technical Standards) norms, and it is valid to inquire whether the transformer has undergone type tests previously performed and if it also has routine tests. Only then will you be sure that the transformer's quality is good and that you will not have any future problems with the equipment.

The good news is that it's not necessary to go through an equipment homologation process for every new transformer acquisition need. This is because it's possible to find various models on the market that are already homologated and offer all the necessary safety for the project, without the need for a lengthy administrative approval process. At Transformadores União, we only work with homologated transformers, which offer the ideal safety and efficiency for each project. Talk to our consultants and find the best solution.